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$118+ Cheap flights from San Diego

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SAN — SYD
13 Nov — 20 Nov1
1 adult
1 adult, Economy

What to know about flights from San Diego

Discover essential information about flights departing from San Diego, including flight schedules, destinations, airlines operating at the San Diego airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 14 October 2025.

Good round-trip deal

$384 or less

Good one-way deal

$111 or less
Price to beat on a round-trip flight from San Diego.
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Price to beat on a one-way flight from San Diego.
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Find flights from San Diego

Enter your travel dates to find the best prices.

Cheapest flights from San Diego
Explore the most affordable flight options available from San Diego. Find the lowest fares based on data from user searches, with prices last updated on 14 October 2025.

Wed 5/1106:45SAN - BZN
1 stop7h 45mUnited Airlines
Sun 9/1113:37BZN - SAN
1 stop7h 15mUnited Airlines
Deal found 13/10$302
Mon 3/1106:45SAN - BZN
1 stop7h 45mUnited Airlines
Sat 15/1116:35BZN - SAN
1 stop5h 32mUnited Airlines
Deal found 13/10$313
Wed 7/116:20SAN - BZN
1 stop4h 55mSouthwest
Wed 14/107:40BZN - SAN
2 stops10h 05mSouthwest
Deal found 12/10$321
Thu 6/1106:15SAN - BZN
1 stop5h 16mUnited Airlines
Mon 10/1116:35BZN - SAN
1 stop6h 54mUnited Airlines
Deal found 13/10$324
Thu 5/213:35SAN - BZN
1 stop7h 44mDelta
Tue 10/205:45BZN - SAN
1 stop4h 26mDelta
Deal found 14/10$333
Wed 29/1015:00SAN - BZN
1 stop7h 25mSouthwest
Tue 4/1105:30BZN - SAN
1 stop8h 10mSouthwest
Deal found 13/10$334
Mon 8/1215:15SAN - BZN
1 stop6h 30mSouthwest
Sun 14/1205:00BZN - SAN
1 stop5h 15mSouthwest
Deal found 11/10$345
Sat 21/208:03SAN - BZN
Nonstop3h 00mAlaska Airlines
Wed 25/212:43BZN - SAN
Nonstop2h 53mAlaska Airlines
Deal found 11/10$348
Fri 31/1006:15SAN - BZN
1 stop4h 48mDelta
Mon 3/1114:01BZN - SAN
1 stop7h 33mDelta
Deal found 13/10$350
Thu 30/1012:45SAN - BZN
1 stop5h 30mSouthwest
Tue 4/1110:45BZN - SAN
2 stops7h 10mSouthwest
Deal found 13/10$353
Wed 12/1106:15SAN - GTF
1 stop10h 55mAlaska Airlines
Wed 19/1118:50GTF - SAN
1 stop16h 22mAlaska Airlines
Deal found 13/10$405
Sun 7/1206:15SAN - GTF
1 stop5h 16mDelta
Wed 10/1205:30GTF - SAN
1 stop4h 25mDelta
Deal found 13/10$479

Find flights from San Diego within your budget

 
Find flights departing from San Diego that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 14 October 2025. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

Route

Depart

Return

Price

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Wed 7/1

06:15-12:03

1 stop4h 48m

Bozeman Gallatin Field

Wed 14/1

16:16-20:42

1 stop5h 26m

$302

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Sat 7/2

06:15-12:03

1 stop4h 48m

Bozeman Gallatin Field

Sat 14/2

16:22-20:38

1 stop5h 16m

$302

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Wed 7/1

16:20-22:15

1 stop4h 55m

Bozeman Gallatin Field

Wed 14/1

07:40-16:45

2 stops10h 05m

$321

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Thu 6/11

06:15-12:31

1 stop5h 16m

Bozeman Gallatin Field

Mon 10/11

16:35-22:29

1 stop6h 54m

$324

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Wed 26/11

19:07-00:10

1 stop4h 03m

Bozeman Gallatin Field

Thu 25/12

05:20-08:55

1 stop4h 35m

$333

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Wed 7/1

08:11-12:06

Nonstop2h 55m

Bozeman Gallatin Field

Wed 14/1

12:46-14:30

Nonstop2h 44m

$333

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Thu 5/2

15:20-22:19

1 stop5h 59m

Bozeman Gallatin Field

Tue 10/2

15:00-22:44

1 stop8h 44m

$333

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Tue 3/3

06:15-14:13

1 stop6h 58m

Bozeman Gallatin Field

Wed 4/3

05:45-09:11

1 stop4h 26m

$333

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Tue 25/11

19:07-00:10

1 stop4h 03m

Bozeman Gallatin Field

Fri 28/11

05:30-08:48

1 stop4h 18m

$333

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Fri 14/11

13:41-22:29

1 stop7h 48m

Bozeman Gallatin Field

Mon 17/11

18:34-23:55

1 stop6h 21m

$333

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 60 results
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Best time to book a flight from San Diego

Have a flexible travel schedule? Discover the best time to fly from San Diego with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from San Diego

Get recent, data-driven insights about flights from San Diego including ideal travel times, pricing trends, and more.

When is the best time to book a flight from San Diego?

Use this chart to determine the optimal time to book a return flight from San Diego to Sydney. Price data was last updated on 10 October 2025.

The best time to book flights from San Diego is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Diego?

Currently, September is the cheapest month in which you can book a flight from San Diego (average of $813). Flying from San Diego in January will prove the most costly (average of $1,620). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from San Diego?

When flying from San Diego check dates and pricing for the following: United Airlines. As it departs for the following popular destinations: Sydney.

United Airlines
United Airlines
From $1,117
Qatar Airways
Qatar Airways
From $1,152

What are popular destinations to fly to from San Diego?

San Diego offers frequent flights to Chicago (611 flights per day), San Francisco (454 flights per day) and New York (447 flights per day).

Dallas/Fort Worth
Dallas/Fort Worth
From $290
Chicago
Chicago
From $111
New York
New York
From $281
Kahului
Kahului
From $201

What is the cheapest place to fly to from San Diego?

The cheapest city to fly to from San Diego is Chicago, with prices starting at $111. Explore other affordable destinations below.

Chicago
Chicago
From $111
San Francisco
San Francisco
From $115
Kahului
Kahului
From $201
New York
New York
From $281

Airline reviews for flights from San Diego

Get insights into the airlines that provide service from San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from San Diego. In the last 7 days, Cheapflights users made a total of 647,157 searches.
Read reviews from past customers who have flown United Airlines from San Diego. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,974 reviews
Check prices

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,974 reviews
United Airlines
7.4
Good
8,974 reviews
Check prices

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Browse thousands of different options on Cheapflights for your next trip

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Related info for your journey

Access useful and relevant information related to your journey from San Diego. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 14 October 2025.

  • What are the most popular destinations to fly to from San Diego?

    For the current month, the most popular flights from San Diego are Boston, Chicago, Atlanta. Boston, Chicago, Atlanta are the most popular locations from San Diego year round.

  • What is the cheapest flight from San Diego to anywhere?

    Users have flown out of San Diego for as low as $111 to Chicago O'Hare Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for $363 to fly from San Diego.

  • What is the cheapest premium economy flight from San Diego?

    Options for some of the cheapest premium economy flights from San Diego we have found on Cheapflights are as follows:
    Fly from San Diego to London Heathrow Airport starting at $2,819
    Fly from San Diego to Seattle starting at $2,930

  • What is the cheapest first class flight from San Diego?

    If you’re looking to fly first-class from San Diego to anywhere, put Philadelphia on your list as prices start at $2,467 for this destination.

  • What is the cheapest month to fly from San Diego?

    Currently, the cheapest month for flights from San Diego is September. The most expensive month for flights is January. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • How does Cheapflights help users find flights from San Diego?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Diego. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

  • Why should you use Cheapflights to find cheap flight tickets from San Diego?

    Millions of users choose and trust Cheapflights to book the best flight deals from San Diego for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

  • Can Cheapflights find flights from San Diego with no change fees?

    Cheapflights does show flights with no change fees to all users. To see these options for flights from San Diego, users can toggle the no change fees filter when performing a flight search.

  • Can Cheapflights notify me if prices for flights from San Diego become cheaper?

    Yes! Start tracking prices for flights from San Diego today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Diego?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Diego. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from San Diego?

Millions of users choose and trust Cheapflights to book the best flight deals from San Diego for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from San Diego with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from San Diego, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from San Diego become cheaper?

Yes! Start tracking prices for flights from San Diego today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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